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SEC-2311: LogoutConfigurer allows other HTTP methods if CSRF is disabled

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This commit is contained in:
Rob Winch 2013-09-19 16:05:26 -05:00
parent 9133c33f1d
commit 5082a04626
2 changed files with 73 additions and 8 deletions
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34
config/src/main/java/org/springframework/security/config/annotation/web/configurers/LogoutConfigurer.java
View File

@ -64,7 +64,8 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
private SecurityContextLogoutHandler contextLogoutHandler = new SecurityContextLogoutHandler();
private String logoutSuccessUrl = "/login?logout";
private LogoutSuccessHandler logoutSuccessHandler;
private RequestMatcher logoutRequestMatcher = new AntPathRequestMatcher("/logout", "POST");
private String logoutUrl = "/logout";
private RequestMatcher logoutRequestMatcher;
private boolean permitAll;
private boolean customLogoutSuccess;
@ -98,8 +99,10 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
}
/**
* The URL that triggers log out to occur on HTTP POST. The default is
* "/logout".
* The URL that triggers log out to occur (default is "/logout"). If CSRF
* protection is enabled (default), then the request must also be a POST.
* This means that by default POST "/logout" is required to trigger a log
* out. If CSRF protection is disabled, then any HTTP method is allowed.
*
* <p>
* It is considered best practice to use an HTTP POST on any action that
@ -110,13 +113,16 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
* </p>
*
* @see #logoutRequestMatcher(RequestMatcher)
* @see HttpSecurity#csrf()
*
* @param logoutUrl
* the URL that will invoke logout.
* @return the {@link LogoutConfigurer} for further customization
*/
public LogoutConfigurer<H> logoutUrl(String logoutUrl) {
return logoutRequestMatcher(new AntPathRequestMatcher(logoutUrl, "POST"));
this.logoutRequestMatcher = null;
this.logoutUrl = logoutUrl;
return this;
}
/**
@ -219,7 +225,7 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
public void init(H http) throws Exception {
if(permitAll) {
PermitAllSupport.permitAll(http, this.logoutSuccessUrl);
PermitAllSupport.permitAll(http, this.logoutRequestMatcher);
PermitAllSupport.permitAll(http, this.getLogoutRequestMatcher(http));
}
DefaultLoginPageViewFilter loginPageGeneratingFilter = http.getSharedObject(DefaultLoginPageViewFilter.class);
@ -230,7 +236,7 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
@Override
public void configure(H http) throws Exception {
LogoutFilter logoutFilter = createLogoutFilter();
LogoutFilter logoutFilter = createLogoutFilter(http);
http.addFilter(logoutFilter);
}
@ -268,15 +274,27 @@ public final class LogoutConfigurer<H extends HttpSecurityBuilder<H>> extends Ab
* instances, the {@link #logoutSuccessHandler(LogoutSuccessHandler)} and
* the {@link #logoutUrl(String)}.
*
* @param http the builder to use
* @return the {@link LogoutFilter} to use.
* @throws Exception
*/
private LogoutFilter createLogoutFilter() throws Exception {
private LogoutFilter createLogoutFilter(H http) throws Exception {
logoutHandlers.add(contextLogoutHandler);
LogoutHandler[] handlers = logoutHandlers.toArray(new LogoutHandler[logoutHandlers.size()]);
LogoutFilter result = new LogoutFilter(getLogoutSuccessHandler(), handlers);
result.setLogoutRequestMatcher(logoutRequestMatcher);
result.setLogoutRequestMatcher(getLogoutRequestMatcher(http));
result = postProcess(result);
return result;
}
@SuppressWarnings("unchecked")
private RequestMatcher getLogoutRequestMatcher(H http) {
if(logoutRequestMatcher != null) {
return logoutRequestMatcher;
}
if(http.getConfigurer(CsrfConfigurer.class) != null) {
this.logoutRequestMatcher = new AntPathRequestMatcher(this.logoutUrl, "POST");
}
return new AntPathRequestMatcher(this.logoutUrl);
}
}

47
config/src/test/groovy/org/springframework/security/config/annotation/web/configurers/LogoutConfigurerTests.groovy
View File

@ -67,4 +67,51 @@ class LogoutConfigurerTests extends BaseSpringSpec {
.logout()
}
}
def "SEC-2311: Logout allows other methods if CSRF is disabled"() {
when:
loadConfig(CsrfDisabledConfig)
request.method = "GET"
request.servletPath = "/logout"
findFilter(LogoutFilter).doFilter(request,response,chain)
then:
response.redirectedUrl == "/login?logout"
}
@Configuration
@EnableWebSecurity
static class CsrfDisabledConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.csrf().disable()
.logout()
}
}
def "SEC-2311: Logout allows other methods if CSRF is disabled with custom logout URL"() {
when:
loadConfig(CsrfDisabledCustomLogoutUrlConfig)
request.method = "GET"
request.servletPath = "/custom/logout"
findFilter(LogoutFilter).doFilter(request,response,chain)
then:
response.redirectedUrl == "/login?logout"
}
@Configuration
@EnableWebSecurity
static class CsrfDisabledCustomLogoutUrlConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http
.logout()
.logoutUrl("/custom/logout")
.and()
.csrf().disable()
}
}
}